Development of risk assessment and risk management methods in the working environment using multicomponent organic solvents

为了促进使用有机溶剂的工作环境中的风险评估和风险管理，开发了多组分有机蒸气浓度的预测和简单的监测方法。将2-5种有机溶剂放入室内的玻璃容器中，在室内不同位置测量蒸气浓度。以汽液平衡、传质理论和计算流体力学为基础，建立了蒸气浓度的预测模型，从实验和理论两个方面对蒸气浓度的时空变化进行了评价，并对实验数据进行了解释。还讨论了一种利用实时监测仪监测多组分有机蒸气的简便方法。结果表明，该方法在一定条件下是可行的。

A prediction and a simple monitoring methods of multicomponent organic vapor concentrations were developed to promote risk assessment and risk management in the working environment using organic solvents. Two to five components of organic solvents were put into a glass vessel in a chamber, and the vapor concentrations were measured at different points in the chamber. Spatial and temporal change in the vapor concentrations were evaluated experimentally and theoretically by introducing a prediction model of the vapor concentrations based on the vapor-liquid equilibria, mass transfer theory and computational fluid dynamics, and the experimental data could be explained by the proposed model. A simple monitoring method of multicomponent organic vapors using real-time monitors was also discussed. The results showed that the evaluation is possible under some conditions.